Code of Federal Regulations > Title 40 > Chapter I > Part 132 > Appendix

Regulations last checked for updates: May 03, 2024

Title 40 - Protection of Environment last revised: Jun 26, 2024

Appendix - Tables to Part 132

Table 1—Acute Water Quality Criteria for Protection of Aquatic Life in Ambient Water

EPA recommends that metals criteria be expressed as dissolved concentrations (see appendix A, I.A.4 for more information regarding metals criteria).

(a)

Chemical	CMC (µg/L)	Conversion factor (CF)
Arsenic (III)	^{a b} 339.8	1.000
Chromium (VI)	^{a b} 16.02	0.982
Cyanide	^c 22	n/a
Dieldrin	^d 0.24	n/a
Endrin	^d 0.086	n/a
Lindane	^d 0.95	n/a
Mercury (II)	^{a b} 1.694	0.85
Parathion	^d 0.065	n/a

^a CMC = CMC ^tr.

^b CMC ^d = (CMC ^tr) CF. The CMC ^d shall be rounded to two significant digits.

^c CMC should be considered free cyanide as CN.

^d CMC = CMC ^t.

Notes:

The term “n/a” means not applicable.

CMC is Criterion Maximum Concentration.

CMC ^tr is the CMC expressed as total recoverable.

CMC ^d is the CMC expressed as a dissolved concentration.

CMC ^t is the CMC expressed as a total concentration.

(b)

Chemical	mA	bA	Conversion factor (CF)
Cadmium ^{a b}	1.128	−3.6867	0.85
Chromium (III) ^{a b}	0.819	+ 3.7256	0.316
Copper ^{a b}	0.9422	−1.700	0.960
Nickel ^{a b}	0.846	+ 2.255	0.998
Pentachlorophenol ^c	1.005	−4.869	n/a
Zinc ^{a b}	0.8473	+ 0.884	0.978

^a CMC ^tr = exp {mA [ln (hardness)] + bA}.

^b CMC ^d = (CMC ^tr) CF. The CMC ^d shall be rounded to two significant digits.

^c CMC ^t = exp mA {[pH] + bA}. The CMC ^t shall be rounded to two significant digits.

Notes:

The term “exp” represents the base e exponential function.

The term “n/a” means not applicable.

CMC is Criterion Maximum Concentration.

CMC ^tr is the CMC expressed as total recoverable.

CMC ^d is the CMC expressed as a dissolved concentration.

CMC ^t is the CMC expressed as a total concentration.

[60 FR 15387, Mar. 23, 1995, as amended at 65 FR 35286, June 2, 2000] Table 2—Chronic Water Quality Criteria for Protection of Aquatic Life in Ambient Water

EPA recommends that metals criteria be expressed as dissolved concentrations (see appendix A, I.A.4 for more information regarding metals criteria).

(a)

Chemical	CCC (µg/L)	Conversion factor (CF)
Arsenic (III)	^{a b} 147.9	1.000
Chromium (VI)	^{a b} 10.98	0.962
Cyanide	^c 5.2	n/a
Dieldrin	^d 0.056	n/a
Endrin	^d 0.036	n/a
Mercury (II)	^{a b} 0.9081	0.85
Parathion	^d 0.013	n/a
Selenium	^{a b} 5	0.922

^a CCC = CCC ^tr.

^b CCC ^d = (CCC ^tr) CF. The CCC ^d shall be rounded to two significant digits.

^c CCC should be considered free cyanide as CN.

^d CCC = CCC ^t.

Notes:

The term “n/a” means not applicable.

CCC is Criterion Continuous Concentration.

CCC ^tr is the CCC expressed as total recoverable.

CCC ^d is the CCC expressed as a dissolved concentration.

CCC ^t is the CCC expressed as a total concentration.

(b)

Chemical	mc	bc	Conversion factor (CF)
Cadmium ^{a b}	0.7852	−2.715	0.850
Chromium (III) ^{a b}	0.819	+ 0.6848	0.860
Copper ^{a b}	0.8545	−1.702	0.960
Nickel ^{a b}	0.846	+ 0.0584	0.997
Pentachlorophenol ^c	1.005	−5.134	n/a
Zinc ^{a b}	0.8473	+ 0.884	0.986

^a CCC ^tr = exp {mc[ln (hardness)] + bc}.

^b CCCd = (CCC ^tr) (CF). The CCC ^d shall be rounded to two significant digits.

^c CMC ^t = exp {mA[pH] + bA}. The CMC ^t shall be rounded to two significant digits.

Notes:

The term “exp” represents the base e exponential function.

The term “n/a” means not applicable.

CCC is Criterion Continuous Concentration.

CCC ^tr is the CCC expressed as total recoverable.

CCC ^d is the CCC expressed as a dissolved concentration.

CCC ^t is the CCC expressed as a total concentration.

Table 3—Water Quality Criteria for Protection of Human Health

Chemical	HNV (µg/L)		HCV (µg/L)
Chemical	Drinking	Nondrinking	Drinking	Nondrinking
Benzene	1.9E1	5.1E2	1.2E1	3.1E2
Chlordane	1.4E-3	1.4E-3	2.5E-4	2.5E-4
Chlorobenzene	4.7E2	3.2E3
Cyanides	6.0E2	4.8E4
DDT	2.0E-3	2.0E-3	1.5E-4	1.5E-4
Dieldrin	4.1E-4	4.1E-4	6.5E-6	6.5E-6
2,4-Dimethylphenol	4.5E2	8.7E3
2,4-Dinitrophenol	5.5E1	2.8E3
Hexachlorobenzene	4.6E-2	4.6E-2	4.5E-4	4.5E-4
Hexachloroethane	6.0	7.6	5.3	6.7
Lindane	4.7E-1	5.0E-1
Mercury ¹	1.8E-3	1.8E-3
Methylene chloride	1.6E3	9.0E4	4.7E1	2.6E3
2,3,7,8-TCDD	6.7E-8	6.7E-8	8.6E-9	8.6E-9
Toluene	5.6E3	5.1E4
Toxaphene			6.8E-5	6.8E-5
Trichloroethylene			2.9E1	3.7E2

¹ Includes methylmercury.

[60 FR 15387, Mar. 23, 1995, as amended at 62 FR 11731, Mar. 12, 1997; 62 FR 52924, Oct. 9, 1997]

Table 4—Water Quality Criteria for Protection of Wildlife

Chemical	Criteria (µg/L)
DDT and metabolites	1.1E-5
Mercury (including methylmercury)	1.3E-3
PCBs (class)	1.2E-4
2,3,7,8-TCDD	3.1E-9

[60 FR 15387, Mar. 23, 1995, as amended at 62 FR 11731, Mar. 12, 1997] Table 5—Pollutants Subject to Federal, State, and Tribal Requirements

Alkalinity

Ammonia

Bacteria

Biochemical oxygen demand (BOD)

Chlorine

Color

Dissolved oxygen

Dissolved solids

Phosphorus

Salinity

Temperature

Total and suspended solids

Turbidity

Table 6—Pollutants of Initial Focus in the Great Lakes Water Quality Initiative

A. Pollutants that are bioaccumulative chemicals of concern (BCCs):

Chlordane

4,4′-DDD; p,p′-DDD; 4,4′-TDE; p,p′-TDE

4,4′-DDE; p,p′-DDE

4,4′-DDT; p,p′-DDT

Dieldrin

Hexachlorobenzene

Hexachlorobutadiene; hexachloro-1, 3-butadiene

Hexachlorocyclohexanes; BHCs

alpha-Hexachlorocyclohexane; alpha-BHC

beta-Hexachlorocyclohexane; beta-BHC

delta-Hexachlorocyclohexane; delta-BHC

Lindane; gamma-hexachlorocyclohexane; gamma-BHC

Mercury

Mirex

Octachlorostyrene

PCBs; polychlorinated biphenyls

Pentachlorobenzene

Photomirex

2,3,7,8-TCDD; dioxin

1,2,3,4-Tetrachlorobenzene

1,2,4,5-Tetrachlorobenzene Toxaphene

B. Pollutants that are not bioaccumulative chemicals of concern:

Acenaphthene

Acenaphthylene

Acrolein; 2-propenal

Acrylonitrile

Aldrin

Aluminum

Anthracene

Antimony

Arsenic

Asbestos

1,2-Benzanthracene; benz[a]anthracene

Benzene

Benzidine

Benzo[a]pyrene; 3,4-benzopyrene

3,4-Benzofluoranthene; benzo[b]fluoranthene

11,12-Benzofluoranthene; benzo[k]fluoranthene

1,12-Benzoperylene; benzo[ghi]perylene

Beryllium

Bis(2-chloroethoxy) methane

Bis(2-chloroethyl) ether

Bis(2-chloroisopropyl) ether

Bromoform; tribomomethane

4-Bromophenyl phenyl ether

Butyl benzyl phthalate

Cadmium

Carbon tetrachloride; tetrachloromethane

Chlorobenzene

p-Chloro-m-cresol; 4-chloro-3-methylphenol

Chlorodibromomethane

Chlorethane

2-Chloroethyl vinyl ether

Chloroform; trichloromethane

2-Chloronaphthalene

2-Chlorophenol

4-Chlorophenyl phenyl ether

Chlorpyrifos

Chromium

Chrysene

Copper

Cyanide

2,4-D; 2,4-Dichlorophenoxyacetic acid

DEHP; di(2-ethylhexyl) phthalate

Diazinon

1,2:5,6-Dibenzanthracene; dibenz[a,h]anthracene

Dibutyl phthalate; di-n-butyl phthalate

1,2-Dichlorobenzene

1,3-Dichlorobenzene

1,4-Dichlorobenzene

3,3′-Dichlorobenzidine

Dichlorobromomethane; bromodichloromethane

1,1-Dichloroethane

1,2-Dichloroethane

1,1-Dichloroethylene; vinylidene chloride

1,2-trans-Dichloroethylene

2,4-Dichlorophenol

1,2-Dichloropropane

1,3-Dichloropropene; 1,3-dichloropropylene

Diethyl phthalate

2,4-Dimethylphenol; 2,4-xylenol

Dimethyl phthalate

4,6-Dinitro-o-cresol; 2-methyl-4,6-dinitrophenol

2,4-Dinitrophenol

2,4-Dinitrotoluene

2,6-Dinitrotoluene

Dioctyl phthalate; di-n-octyl phthalate

1,2-Diphenylhydrazine

Endosulfan; thiodan

alpha-Endosulfan

beta-Endosulfan

Endosulfan sulfate

Endrin

Endrin aldehyde

Ethylbenzene

Fluoranthene

Fluorene; 9H-fluorene

Fluoride

Guthion

Heptachlor

Heptachlor epoxide

Hexachlorocyclopentadiene

Hexachloroethane

Indeno[1,2,3-cd]pyrene; 2,3-o-phenylene pyrene

Isophorone

Lead

Malathion

Methoxychlor

Methyl bromide; bromomethane

Methyl chloride; chloromethane

Methylene chloride; dichloromethane

Napthalene

Nickel

Nitrobenzene

2-Nitrophenol

4-Nitrophenol

N-Nitrosodimethylamine

N-Nitrosodiphenylamine

N-Nitrosodipropylamine; N-nitrosodi-n-propylamine

Parathion

Pentachlorophenol

Phenanthrene

Phenol

Iron

Pyrene

Selenium

Silver

1,1,2,2-Tetrachloroethane

Tetrachloroethylene

Thallium

Toluene; methylbenzene

1,2,4-Trichlorobenzene

1,1,1-Trichloroethane

1,1,2-Trichloroethane

Trichloroethylene; trichloroethene

2,4,6-Trichlorophenol

Vinyl chloride; chloroethylene; chloroethene

Zinc

authority: 33 U.S.C. 1251

source: 60 FR 15387, Mar. 23, 1995, unless otherwise noted.